Will use Tranquility, instead of mana/rage/energy or runes. Tranquility will be something like the opposite to Rage - it will be regenerated only out of combat.

His main strenght will be the ability to regenerate mana of the other players in group (something like a mana-healer)

Will be concentrated on bows and crossbows

Will be able to wear cloth and leather armor only

Will be able to reach the Spiritwalking state. In this state, Dream walker won´t be able to use physical weapons. However, he will be also 75% resistant towards physical damage. Additionally, in Spiritwalker state, his Tranquility will regenerate also during combat.